Knitting-machine



' (No Model.) I 5 sheets-sheet 1.

W. H. &G. D. MAYO.

KNITTING MACHINE.

Patented May 10, 1892.

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wb'Zrr/esses.

6mm @GM (No Model.) 5 Sheets-Sheet 2. W. H. 811G. D. MAYO. KNITTING MAGHINE.

Patented May 10, 1892.

Z6 tn/asses.

mums areas so, rmna'rumm, vusuma'rnu, n. c.

(No Model.) a sheets-Sheet 3, .W. H. & G. D. MAYO. KNITTING .MAGHINB.

Patented May 10, 1892.

W. H. 8: G. D. MAYO.

. (No Model.) 5 Sheets-Sheet .4.

KNITTING MACHINE.

Patented May 10, 1892.

- wtfinesses.

UNITED STATES PATENT OFFICE.

WVILLIAM H. MAYO AND GEORGE D. MAYO, OF FRANKLIN, N EYV HAMPSHIRE.

KNITTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 474,671, dated May 10,1892.

Application filed August 29.1891. Serial No. 404,098. (No model.)

To all whom it may concern.-

Beit known that we, WILLIAM H. MAYO and GEORGE D. MAYO, of Franklin,county of Merrimac, State of New Hampshire, have invented an Improvementin KnittingMachines, of which the following description, in

connection with the accompanying drawings,

is a specification, like letters and numerals on the drawingsrepresenting like parts.

This invention relates to knitting-machines,

and has forits object to improve the construction of the same.

One feature of our invention consists in a pattern mechanism, as will bedescribed, for automatically controlling the operations of the machine.

Another feature of our invention consists in a novel take-up mechanism,as will be hereinafter described.

The invention herein to be described is an improvement on the class ofcircular-knitting machines shown and described in United States PatentNo. 461,357, dated October 13,

1891, said machine being adapted forthe production of stockings.

In accordance with this our invention we have provided the machine withtwo independent pattern mechanisms, one for controlling the operation ofthe parts in the production of tubular knitting, the cam-cylinder beingthen rotated, and the other controlling the reciprocal movements of thecam-cylinder in narrowing and widening the fabric or stocking for heelsand toes. The pattern mechanism for controlling the circular movementsof the machine will preferably include mechanism for governing thelength of the tubular fabric in the leg and foot and also the length ofthe stitches.

The particular features of our invention will be described in thespecification, and pointed out in the claims at the end thereof.

Figure 1 is a front elevation of a knittingmachine embodying ourinvention, the neetile-cylinder, the cam-cylinder, and its co-operatingparts being omitted, but said parts are shown separately in Fig. 16;Fig. 2, a sectional detail of the take-up mechanism to be referred to,the section being taken on the line or m, Fig. 1, looking toward theleft. Fig.

2 is aninner side view of the clutch part c; Fig. 3, a front elevation,on an enlarged scale,

of a portion of the machine shown in Fig. 1

to more clearly show the pattern mechanisms. Fig. 4 is a partial sectionand elevation on a line indicated by as in Fig. 1, looking toward theright in said figure. Fig. 5 is a partial section and elevation on theline indicated by no, but looking toward the left in Fig.1; Fig. 5, adetail to be referred to; Fig. 6, a rear elevation of a portion of themachine shown in Fig. 1 with the wheel 0. partially broken out, itshowing in elevation that portion of the machine shown in Fig. 5, theView being toward the left in that figure. Fig. 7 is a top or plan viewof the top plate of the machine, the needle-cylinder and. cam-cylinderbeing omitted; Fig.8, a side elevation, on an enlarged scale, of thepattern devices employed for controlling thelength of tubular work.

ing to theleft; Fig. 12, a detail, on an enlarged scale, of a lockingdevice for the clutch-rod 0 which operates the clutch, the position ofwhich determines whether the camcylinder shall be rotated orreciprocated; Figs. 13 and 14, details, on an enlarged scale, of thetakeup mechanism, Fig. let being a section of Fig. 13 in the dotted lineor, looking to the left. Fig. 15 is a detail of the plate cl"; Fig. 1G,a vertical section taken through part of the machine chiefly to show oneof the needles and cam-cylinders removed from Figs. 1, 3, and 7. Fig. 17is an enlarged detail of part of the take-up.

We will first refer to Fig. 16 of the drawings. Said figure shows invertical section a cylinder-guide having an attached curb 100; aneedle-cylinder a a', the part a having a projecting ledge at; a ring asupported on the said ledge; a ring a, movably mounted upon the ring aso as-to rotate thereon and having a suitable groove to receive theprojections (1 of the horizontally-sliding jacks a adapted to bereciprocated during the rotation of the said ring in grooves madein theupper end of the part a of the needle-cylinder and also in the upperside of the ring a the needles a some of which have long and some ofwhich have short butts; the cam-ringh provided with cam projections 72.and having an arm 71 the movement of the said ring adjusting theneedle-cylinder vertically to vary the length of the loops made by theneedles; the skeleton cylinder (i to guide the butts of the needles; thecam-cylinder a, having at its lower end beveled teeth a and providedwith suit-able cams to actuate the said needles, both for circularknitting and for heel and toe work, and such parts are and may be all asdescribed in our said patent, so that the said devices need not beherein further described, for the features to be described and claimedin this present invention relate chiefly to the pattern mechanism ordevices for controlling the various movements and for automaticallymoving the ring 72.

The frame-work consists, essentially, of a top plate A, erected uponstandards A A, suitably connected by cross-girths and having properbearings for two short shafts A A, each rotated independently of theother, the shaft A having a fast pulley e and the shaft A a fast pulleya, by which each may be belted to any proper counter-shaft and bedriven. The shaft A has an attached fast pulley a, which in practicewill be belted by a belt a (shown by dotted lines) with and so as torotate either a loose pulley a! or a fast pulley e on a shaft (1.,having suitable bearings in the frame-Work. The shaft A has at one end acrank c, which by a link a, connected with a segmental gear 0, pivotedat a, continuously oscillates a toothed pinion a, mounted loosely on theshaft a the said pinion having a projecting pin a, which may be made toenter a hole 0 (see dotted lines, Fig. 2) in a plate or disk a, looselysplined upon the said shaft a, the hub of said disk having an annulargroove, which is entered by suitable pins or projections c of an arm 0the hub c of which is fast upon a clutch-rod c to be described. The gear0 and the plate 0 constitute a clutch, so that whenever the plate 0 ismoved laterally upon the shaft a to engage the pin of thecontinuously-oscillating gear 0 then and only then the shaft a will beoscillated to effect the reciprocating movements of the cam-cylinder, aswill be described, and during this time the belt at will be upon theloose pulley a, before referred to; but when the circular knit- ,ting isbeing done, as in the production of legs and feet, then the said clutchwill be disengaged or in the position shown in Fig. 1, and the belt awill be on the fast pulley a, the cam-cylinder then being rotated.

The plate 0 has a safety device 0 made as a plate pivoted at 0 andprovided with a beveled projection 0 the said safety device beingadapted to swing between the stops c In our machine the engagement ofthe clutch parts referred to for reciprocal knitting must be made whilethe gear 0 is moving in the direction of rotation of the shaft a duringrotary knitting, and this is effected by the safety device.

In operation, when the gear c is to be made the driver for the shaft a,the shipper-rod 0 is actuated to pull the plate c toward the said gear,and the face of the said plate strikes the pin 0 Now if the gear 0 atthe time that the plate 0 is pushed up against the pin 0 is traveling inthe same direction as the plate o then the pin 0 hits against theright-hand end (see Fig. 2) of the safety device and swings it over totheleft, thus uncovering the hole 0 and letting the pin 0 enter it; but,on the contrary, should the direction of movement of the gear 0 at suchtime be opposite the direction of rotation of the gear a, then the saidpin 0 will strike against the left-hand side of the said safety devicewhere it is beveled and will turn the said safety device to cover thesaid hole 0 and the pin will ride up the incline of the safety deviceand pass off the safety device ready to act against the right-handsideof the safety device and turn it back to uncover the hole, asstated, when the gear 0 is moved in the opposite direction. The shaft ahas fast upon it two like gears A which engage the peripheral teeth ofand rotate two like bevel-toothed gears A A, the said gears by theirbevel-teeth each engaging with like teeth a at the lower ends of thecam-cylinders and moving the said. cam-cylinders, as required, accordingto the work to be done.

It will be understood that in the machine herein represented twocam-cylinders and two needle-cylinders and their contained parts will beused, each needle-cylinder being'suitably supported in independentopenings, as A A ,'in the bed A, (see Fig. 7,) the needle and camcylinders being, however, omitted from said figure'to avoid confusion.

In Figs. 3 and '7 we have shown the guide and curb referred to inposition upon the plate A, together with the rings o common to the saidpatent, where they are designated by like letters; but we have hereinomitted from the said ring the cam projections, which in practice willoperate the controlling levers or devices for actuating the latcheswhich cooperate with the elevators and depressors (fully described andshown in the said patent) and employed for elevating and depressing inthe proper time and order the needles used in narrowing and then inwidening, all as provided for in the said patent.

In Fig. 7 of the drawings we have shown two like cam-rings 0 joinedtogether by a connecting-rod (P, so that the said rings may be operatedin unison, in order that the pattern mechanism to be described may, whenit actuates one cam-ring c actuate the other at the same time. The shafta has fast 011 it a worm e in mesh with a worm-toothed gear a, (see Fig.5,) loose on a shaft a, ithaving, as represented, hearings in a sleeveor hub a, secured to or forming part of a bracket e 7, fastened totheframe-work of the machine. The shaft e constitutes the operating-shaftfor the pattern mechanism for controlling the length of circular workand also the length of the stitches, which stitches are varied in theleg to fashion or shape the same.

The shaft a has fast on it a pinion e 3.

side of the said gear and the arm against its other side, the screwenabling the clamp to be held with more or less force upon the saidwheel. The gears a and a will have their teeth cut away for a shortdistance, as represented at 2 and 3 in Figs. 9 and 10. The gear a (seeFig. 9) has a pin at its front side next the gear a and the gear a has apin or projection d at its rear side next the gear a. The arm (L22,having a shoulder 0. (shown by dotted lines,) is made adjustable on orwith relation to the loose gear a so as to make the distance between thesaid shoulder and the pin n more or less, according to the lengthrequired for the leg, the extent of the space between said shoulder andpin determining the time that the fast gear a, which rotates thepattern-surface (r may remain at rest,

it in practice remaining at rest while the longer stitches of the footare being knitted. The studs or projections a are of such length and solocated as to engage one with the other at the proper times. The shaft663 has fast upon it a cam-plate. a (see Figs. and 5%) to which isadjustably secured a disk a the said. disk being provided, as represented, with a curved slot a (see Figs. 1 and 3,) through which projectsa screw to, by means of which the said disk may be held upon thecam-plate a in adjusted position, the plate and disk constituting apattern-surface. The disk G has, as represented, a second curved slot ain which is adjustably secured a pin or screw (1 The cam-plate a hasalso extended from it in the same direction a stationary pin or stud a(See Fig. 5 and also dotted lines, Fig. 3.) i

The studs or pins a a constitute releasing devices for the belt-shipper,as will be described, whereby the belt may be shipped from the fastpulley (L63 to the loose pulley a. The belt-shipper, as herein shown,consists ofa hub Z), (see Figs. 4, 6, and 11,) fast on a shipperrod b,as by a set-screw b and provided with forked arms 6 to embrace thedriving-belt. The shipper-rod is provided at one end with ashipper-handle I), (see Fig. 1,) the said handle being connected byastrap or cord 11 to a rod 11 secured to a foot-treadle b the said strappassing, preferably, over a roller 5 The shipper-rod Z) has fast on itby a set-screw b a'collar b (see Fig. 11,) the latter being providedwith a lug 11 (see Fig. 4,) in which is pivoted an elbow-shaped leverhaving two arms Z7 12 the arm Z1 being notched to form a hook or latch19 to engage a lug Z9 secured to or forming part of the bracket to" (seeFigs. 5 and 11) when the shipper-rod has been moved to place thedriving-belt a on the fast pulley 00 The arm I2 has pivoted upon it adog 19 (see Figs. 11 and 11%) provided with an ear b", having a screw 19provided with a set-nut b ,so that the said screw may be retained inadjusted position, the adjustment of the said screw enabliug the machineto be stopped at any part of its revolution. The arm 19 has an extensionor toe 19 against which the screw Z1 strikes when the dog is lifted bythe pins or projections a a respectively, on the disk 0E and earn a aswill be described, the said toe thus forming a back-stop for the dog.The downward movement of the dog is limited by a shoulder of the dogstriking the arm b t The shipper-rod b is surrounded by a spring e whichnormally acts to place the drivingbelt a on the loose pulley wheneverthelatch b is disengaged from the projection Z1 as will be described.The shafta' has fast on it a ratchet-wheel 12 (see Figs. 1 and 5,)provided with a sleeve 12 (see Fig. 5) to receive a headed pin or rod 11the inner end of which may be made to enterone of a series of holes 17in the worm-toothed gear a, before described,thus locking theratchet-wheel to the said gear. The clutch-rod 0 (see Figs. 1, 3, and12)'is surrounded by a spring 0 which normally acts to disengage the twoparts 0 c of the clutch used to oscillate the shaft (1 duringreciprocating knitting. When the shaft a is being oscillated or rockedbackward and forward during reciprocating knitting,

the worm C673 thereon,by its engagement with the worm-gear a, oscillatesthat gear and the ratchet-wheel 19 so that a tooth of the saidratchet-wheel in engagement with a pawl 0 raises and lowers a lever c,which by its action on a rod 0 extended from a suitable guide 0 (seeFigs. 3 and 4B,) reciprocates the said rod and causes the pawl 0 carriedthereby and in engagement with a ratchet-wheel 0 to rotate the saidratchet-wheel intermittingly. The pawl 0 is kept in engagement with theratchet-wheel by a spring 6 .(See Fig. 4E.)

The ratchetwheel 0 has secured to or forming part of it a pattern wheelor disk 0 which in its operation determines the number of courses forthe narrowing and widening and when the said narrowing shall cease andthe widening commence. The patternwheel 0 isherein represented asprovided with a pin or projection 0 (see Fig. 4) and at a pointsubstantially diametrically opposite with a ing or projection 0 Thedetent e prevents retrograde motion of the pattern-surface c The pin 0operates, as will be described, to disengage the clutchhub or collarIII) c from the pinion on the shaft a, and the lug determines thestopping of the narrowing and the commencement of the widening.

In the narrowing of the fabric for the formation of a heel 01' toe onlya portion of the needles in the needle-cylinder will be used viz., theneedles having short heelswhile the other or long-heeled needles at suchtime will be lifted or thrown out of action. Herein, as in the patentreferred to, it will be understood that in narrowing the needles will beput out of action at the end of each reciprocation of the cam-ring, andafter the desired or required number of short-heeled needles have beenraised orput out of action and the narrowest course in the heel has beenknitted then the short-heeled needles are again put into action insuccession in the usual manner by devices controlled by the cam-rings 0as provided for in the said patent. The cam rings 024) common to thesaid patent are connected by a rod (1 provided with a hub (1 (see Figs.3, 5, and 7,) having a pin 01 which projects through a hole or opening din the top plate A, (see Figs. 7 and 15,) said pin being adapted toengage one of a series of notches or shoulders 12 of a plate d and ashoulder 13, constituted, as shown, by one side of the opening d", thesaid plate being secured to the plate A. The hub d is loose on the bar61 between the collars (1 d fast on said bar, the collar (2 having, asshown, a handle d by which the bar may be moved horizontally or in thedirection indicated by the arrow 40, Fig. 7, a spring c1 secured to theplate A by a suitable screw or device 01 acting upon the pin d to movethe bar in the opposite direction to keep the said pin in engagementwith one or another of the notches or shoulders referred to.

WVhen circular work is being done, the pin (1 engages the notch 10, (seeFig. 15,) and the ring 0 will then be put in such position that it willhold out of operative position the devices which move the latches, asprovided for in the said patent,,so that at such time the needleelevators and depressors for putting out of action and bringing intoaction the needles are restrained from operation. When, however, thecam-rings c are to be put into position to enable the devices foractuating the latches which control the needle elevatin g and depressingdevices for narrowing and widening to come into operation, then the bard will be so moved that the pin (1 will stand against the notch 12. Thisfirst movement of the bar d to disengage the pin d from the notch 10 andlet it engage the notch 12 and move the cam-ring is effected when thehandlever 0 is moved to effect the engagementof the clutch foroscillating the shaft a, as at such time the inclined finger d (seeFigs. 5 and 12) of an arm 01 secured to or forming part of theclutch-rod 0 9, acts on the pin (1 and rocks the hub d outwardlysufficiently to disengage the said pin from the notch 10 and permit thespring 61 acting on the pin (F, to carry the pin against the notch12,where the pin remains until the narrowing of the fabric has beencompleted. When the narrowing is completed, the projection 0 caracts tomove the bar (1 until the pin 01 abuts against the shoulder 13. At thistime the cam-rings 0 by their position permit to 'come into operationthe devices which lower in succession the short-heeled needles forwidening, all as provided for in the said patent. When the widening ofthe fabric has been completed for the production of a heel, thereciprocating motion of the shaft 00 and of the machine is stopped bymeans of the stud or pinc on the pattern-wheel e striking a lug orfinger 01 (see Figs. 5and 12) on an arm at, secured to or forming partof a sleeve cl, loose on the clutch-rod 0 The pin 0 strikes the finger01 and carries the arm at forward or to the right in Fig. 5 and rocksthe sleeve (1 on the rod 0 until a second arm (Z strikes a lug or pin 01on a lever (Z pivot-ed, as at 1 to the frame-work of the machine andlifts the inner end of said lever from between the hub d and thebearings d for the said rod and into the position, Fig. 12, and as soonas this has been done the spring 0 on the rod forces the latter in thedirection of the arrow 51, (see Fig. 1,) effecting the disengagement ofthe clutch referred to, to thus stop the reciprocating motions of theshaft or. When the said clutch is disengaged, as described, the lever (Zrests on the hub (Z as in Fig. 12; but when the clutch is engaged, thenthe lever rests between the hub and the bearing 01 and the lever thenacts asa looking device to keep the clutch closed. When the lever isactuated to release the clutch and stop the oscillatory motion of theshaft a, knitting is stopped, and at such time the operator, by andthrough devices fully described in the said patent, will put intoposition the cam which pulls down into working position all thelong-heeled needles which were rendered inoperative for heel-work, andthis done, as provided for in the said patent, the operator, by puttinghis foot upon the treadle b, will slide the shipper-rod to place thebelt a" on the fast pulley and start the rotation of the cam-cylinders.The lever 61 has an outwardly-extended arm (see Figs. 3 and 5) adaptedto be engaged by hand when it is desired to stop the machine, the saidlever constituting a controlling device for the shipper-rod b, as bymoving the said lever the latch I9 may be disengaged from the lug d Theinner end of the lever (1 held down normally by a spring 01 supports anarm @1 connected to a rod (Z (see Fig. 5,) which rod is extended downthrough a guide (1 secured to or forming part of the bracket a the lowerend of the said rod being provided with a loop or eye d, through whichis extended the pawl or latch I), (see Fig. 11,) when said pawl engagesthe lug Z). The rod (Z is held down by a spring (Z which normally keepsit in its lower position, with the arm (Z on the lever 02 and the loop dclear of the pawl or latch b. In this way by movement of the arm (1 theshipper-rod may be released to allow its spring to shift the belt fromthe fast to the loose pulley.

The length of circular Work knitted by the machine may be controlled bythe gears a a dn the following manner: Then the machine is about tocommence knitting circular workas, for instance, the leg of a stocking,the knitting being commenced at the top of the stocking where the loopsare the longestthe loose gear a '(see Fig. 10) will have its smooth ortoothless portion 3 immediately over the pinion a, and the teeth of thegear a fast on the shaft (1 carrying the pattern a Will be in mesh withthe said pinion. In this condition the shoulder e of the arm a (seeFigs. 6 and 8) will stand at a short distance back of the pin ta (thesaid shoulder and pin being, however, shown by dotted lines) of the fastgear a and the pin (1 of the loose gear stands at some distance ahead ofthe said pin in the direction of rotation of the said gears. Now whenthe machine is set in operation by shifting the belt from the loosepulley a to the fast pulley (e to commence circular knitting the pinione will'start and r0 tate the gear at in the direction indicated by thearrow 100 Figs. 8 and 10, and in the rotation of the said gear the pinor stud (1 carried by it, will after a time engage the pin or stud a onthe loose gear a and the fast gear a will thereafter carry the loosegear (1 with it for a short distance until the smooth or toothlessportion 3 of the said loose gear is removable from above and its toothedpart is put into engagement with the teeth of the pinion e After thisboth gears are revolved by the pinion (r with the said two pins incontact until in the rotation of the fast gear a its smooth or toothlessportion 2 is brought to its lower side, as in Fig. 6, at which time therotation of the fast gear, and consequently of the shaft andpattern-disk CF, is stopped and the said parts remain stationary; butthe shaft a still continues to revolve and the machine to knit circularwork. While the fast gear (1 is thus stationary, the loose gear 0.continues to be revolved by the pinion or until the shoulder a of thearm 0, strikes the pin (0 on the fast gear a" which thus starts the saidfast gear and rotates it with the said loose gear until the teeth of thefast gear are again brought into engagement with the pinion @0 Bothgears now. continue to revolve until the smooth or toothless portion 3of the loose gear a is again brought to thelower side opposite thepinion a gwhen the rotation of the loose gear is again stopped; but thefast gear a continues to be revolved for a short distance until the pina on the cam-disk 0!) engagesthearm'ordogbanddisengagesthelatch I), thuspermitting the spring I) to shift the belt into position on the loosepulley and stop the machine, thus arresting circular knitting for thefoot of the stocking, the latter having been completed ready for theknitting of the toe, the roll fat that time restingon the shoulder 60 ofthe disk at the roll being shown by so that they may come each properlyinto engagement or mesh with the teeth of the ion 0.

In the formation of a stocking it is necessary to stop the machine andsuspend circular knitting at the completion of the leg portion, and thisis effected by the adjustable stud or pin a on the disk e it then actingon the arm or dog if to release the shipperrod 1), the gears a and e atsuch time oocupyiug an intermediate position, or a position betweentheir starting and finishing positions, the gears being in such relationto the pinion 0. that at least one of them will be in engagement withthe said pinion and ready to be revolved when the shipper-rod b is againmoved to shift the belt upon the fast pulley 00 for the production ofcircular Work. The length of the foot portion of the stocking may beregulated by the adjustment of the pin or stud a on the pattern disk orwheel (L25 to ward or form the stud a Each of the fast and'loose gears a60 will have co-operating with it a like retarding device. (Shown inFig. 6 as a dog or pawl e acted upon by a spring 6 The pattern-camserves the purpose of regulating the length of stitch for the tubularparts of the leg, and in so doing the camshaped periphery thereof and ofthe plate of (see Fig. 5 act on a roller f (see Fig. 4) at the end of alever f, pivoted to the framework of the machine at 4, (see Fig. 3,) theother end of the said lever being forked to embrace a rod f having atits end a collar f provided with a suitable projection to enter looselya hole in the outer end of the arm 71 fast on the cam-ring h beforereferred to.

In Fig. 16, r shows a vertical slot in the needle-bed, which slot isentered by a pin 0", (shown as standing in the upper end of the saidslot,), said pin being connected with the curb which surrounds andretains the lower end of the needle-bed, said slot and pin acting as aguide for the said bed in its vertical movement. When the roll frestsupon the portion 60 of the cam ta to then theca m projection h of thecam-ring 71. rests upon an inclined portion of the lower end of theneedlecylinder at such a point as to place the top of the cylinder in amore or less elevated position, according to the length of the stitch desired for commencing the stocking, and during the rotation of thepattern-eam the cam-ring 71 will be gradually rotated in the directionof the arrow near it in Fig. 16 to thus enable the needle-cylinder todescend by gravity, thus shortening the stitch and contracting thediameter of the stocking. where it is desired to make the leg of lessdiameter.

Whenheel and toe work is being done the stitch should be long, as whenthe leg is commenced, and to insure the long stitches during narrowingand widening we have devised a leverf which is pivoted at f to the underside of the bed-plate Aof the machine, and the inner end of this leveris connected by a link f (see dotted lines, Fig. 7) to the clutchrod 0so that when the latter rod is moved it catches the leverf causing itsforked opposite end, resting against the collarf to move the rod f andturn the cam-ring h in a direction to raise the needle-cylinder.

The cam-ring h constitutes what we shall in some instances hereinafterdenominate the needle-cylinder support or adjuster.

Sometimes, owing to accident to the yarn, it becomes necessary to stopthe machine after the stocking has been started, and then before againstarting the machine the pin 6 will be withdrawn and the ratchet-wheel11 will be turned back opposite the direction of the arrow 21 until thepattern disk e is again put into starting position.

We will now refer to the take-up for controlling the slack in the yarnduring reciprocating knitting. In Fig. 1, h represents arod fast to apart of the machine and extended up over the machine at h. This rod hasclamped upon it the rear end of an arm 71 provided with bearings for ashaft 7t, located at right angles to the arm 7L3 and near the front sideof the machine. The arm 7L3 is provided with collars 7L6, having ears,(shown best in Figs. 13 and 14,) and these cars have pivoted betweenthem on a suitable pin a block 7L7, through a hole in which is extendeda guide-rod 7L8, the front end of which is extended down in front of theend of the arm 71. and is provided with an eye h", through which theyarn is passed. The rod referred to lies between two upright arms orpins 71 secured to or rising from the arm 7L3. At the under side of thearm 7L3 is a plate h and below it a disk h, which is adapted to slidevertically on a pin 71 the disk being acted upon by a spiral spring 7Lsurrounding said pin and resting against a nut h, screwed upon the lowerend of the pin h (See in large detail Fig. 17.) The disk 71 is actedupon by a lever h, pivoted at 72. the rear end of the said lever beingconnected by a link h with the rod 71 The lever h has, preferably, ahole at one end, through which the link h is extended, and the latterbelow the lever has an enlarged portion or eye 72, (see Fig. 14:) to actas a stop or rest for that end of the lever 71". The block 7L7 (seeFigs. 13 and 14) has fast to it one end of a spring 71 the other end ofwhich is connected (see Fig. 2) to a rod it, made adjustable in a posth, carried by the arm h. The shaft b has fast on it a hub 71 having anarm h, which cooperates with a pin or projection 72, on the block 7L7.The shaft it has also fast on it an arm 71 connected by a link 71 (seeFigs. 1, 3, and 13,) joined at its lower end to a lever 71, pivoted inturn at its lower end upon an ear 7t of the plate d before de: scribed.(See Figs. 3 and 15.) The lever 72, has a curved slot it, into whichenters a stud 71. herein represented as forming a part of a collar d",before described. WVhen thelink 72. is depressed or pulled downward, thearm 71 retires from the pin h of the block 7L7 and allows the spring hto move and raise the outer end h of the rod 7L8 to take up the slack inthe yarn.

Figs. 1 and 2 show the parts in the position for circular work. YVhenthe work is to be varied, the clutch-rod 0 is moved by the lever 0 andthe stud 72/ on the collar d travels in the slide W of the lever 71,turning the latter to depress the link at and rock the shaft h to turnthe arm 71, away from the projection It, thus permitting therod h torise and take up the slack in the yarn. As the lever 71 is moved to letthe rod 7L8 rise, the stop or head h of the link 71/ is depressed, andso removed from the lever 71", permitting the spring 71 to lift the diskh and clamp the yarn between it and the plate h, the yarn being heldonly by the stress due to the spring h We claim 1. In acircular-knitting machine, the combination, with the shaft a having afast and a loose pulley, a driving-belt in engagement with one of saidpulleys, a belt-shipper to move .the said belt from one to the otherofsaid pulleys, a locking device for said shipper to maintain the belt onthe fast pulley while the said shaft is being rotated for circular work,and a pattern mechanism to automatically release the belt-shipper at apredetermined point or time, of devices to reciprocate the said shaftduring heel and toe work, a locking device to co-operate with thedevices for reciprocating the said shaft, and a pattern mechanism toautomatically release the said locking device to stop the reciprocationsof the said shaft at the proper time, substantially as described.

2. A knitting-machine containing the following instrumentalities, viz: aneedle-cylinder, a series of needles therein, a cam-ring to act upon thesaid needle-cylinder, a cam-cylinder having cams to actuate the saidneedles, a shaft, as a, and gearing between it and the cam-cylinder, andmeans to rotate the said shaft and to reciprocate the said shaft atsuitable times, and a clutch to determine the periods of rotation and ofreciprocation of the said shaft, and consequently the rotation andreciprocation of the cam-cylinder, a clutch-rod, and connecting devicesbetween the said clutch-rod and the said cam-ring,

whereby the engagement of the clutch to effeet the reciprocating motionof the said shaft automatically raises the needle-cylinder to lengthenthe stitch, substantially as described.

3. In a knitting-machine, the combination, with a shaft o provided'witha fast pulley and a loose pulley, a driving-belt in engagement with oneof said pulleys, a belt-shipper to move the said belt from one to theother of said pulleys, a locking device for said shipper, consisting ofa lever pivoted to the shipper bar or rod and having one arm providedwith a latch 0r pawl I), and a dog b pivoted to the other arm of thelever, of a pattern mechanism consisting of a disk a provided with a pinor stud a to act on the dog I), and gearing to produce rotation of thesaid disk, substantially as described.

4. In a knitting-machine, the combination of thefollowinginstrumentalities, viz: a shaft a, provided with a worm, a gearin mesh with said worm, a shaft a, upon which the gear is mounted, apinion a, and a patternshaft a a gear 0, fast on the shaft 0, andprovided with a smooth or toothless portion and with a pin or stud C023,and a gear (L20, loose on the shaft a and provided with a smooth ortoothless portion and having a pin or stud (v to co-operate with the pinor stud c0 and an adjustable arm located between the said gears a asubstantially as described.

5. In a knitting-machine, the following instrumentalities, viz: a shaftat, having awormgear thereon, a worm to engage and rotate it, a pinion(U on the said shaft, a shaft (1 a gear thereon in mesh with the piniona, a pattern disk or plate n mounted on said shaft c0 a pin or studmoved by the said disk to eifect the stopping of the machine whencircular knitting is to be suspended, a, cam secured to the said disk orplate, a stitch-regulating cam-ring to regulate the length of thestitches, and a lever f in operative connection with the said cam-ringand actuated by the said cam, substantially as described.

6. In a knitting-machine, the combination of the followinginstrumentalities, viz: a shaft n a ratchet-wheel b flrotatedtherefrozma pattern-wheel e to control the reciprocation of the machine,a pawl and ratchet-wheel 0 to rotate said pattern-wheel, a pawl inencured, a sleeve provided with an arm 71, to

act on the said block and force the said rod 77. downward, as whencircular kn1tt1ng is being done, a spring to move the said block h in adirection opposite to that in which it is moved by the said arm .72 aclamp to hold the yarn during reciprocating knitting, a lever upon whichthe said clamp is mounted, and a rod h connecting the said take-up andthe clamp-carrying lever and adapted to operate substantially asdescribed.

8. In a knitting-machine, the herein-de scribed take-up mechanism,consisting, essentially, of a rod h provided with a yarnguide, a block7L7, to which the said rod is secured, a sleeve provided with an arm 71,a rock-shaft to which it is fastened, said arm acting on the said blockand forcing the rod 718 downward for circular knitting, a second arm hfast on said rock-shaft, a slotted lever 71, combined with a linkconnecting said slotted lever with the said arm 76 a pin or studextended into the slot of the said lever, a bar 01 carrying said pin,and a pattern-surface to release the said bar at the proper time,whereby the movement of the said bar in one direction, as when themachine is started for reciprocating knitting, moves the said lever 7Lto release the rod 71 and effect the clamping of the thread on its wayto the arm If, the combination being and operating substantially asdescribed.

In testimony whereof we have signed our names to this specification inthe presence of two. subscribing witnesses.

WILLIAM H. MAYO. GEORGE D. MAYO. Witn csses:

NAPOLEON B. HALE, JAMES E. BARNARD.

